EP2073387A2 - Procédé de fabrication d'un appareil de commande sans touches - Google Patents

Procédé de fabrication d'un appareil de commande sans touches Download PDF

Info

Publication number
EP2073387A2
EP2073387A2 EP20080106004 EP08106004A EP2073387A2 EP 2073387 A2 EP2073387 A2 EP 2073387A2 EP 20080106004 EP20080106004 EP 20080106004 EP 08106004 A EP08106004 A EP 08106004A EP 2073387 A2 EP2073387 A2 EP 2073387A2
Authority
EP
European Patent Office
Prior art keywords
carrier film
deformation
printing
piezoelectric
piezoelectric layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20080106004
Other languages
German (de)
English (en)
Inventor
Peter Dr. Bolte
Till Fiegler
Hans-Dieter Heimberger
Siegfried Reuter
Bruno Santarossa
Josef Werner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Automotive GmbH
Original Assignee
Continental Automotive GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP2073387A2 publication Critical patent/EP2073387A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/964—Piezoelectric touch switches
    • H03K17/9643—Piezoelectric touch switches using a plurality of detectors, e.g. keyboard

Definitions

  • the invention relates to a method for producing a keyless operating device, in particular for use in the dashboard of a motor vehicle.
  • HMI devices or elements are used in a variety of forms in electronic devices, especially in the dashboard or in the cockpit of a motor vehicle. Such devices are used in particular for automotive air conditioning or audio devices used.
  • touch-sensitive elements such as, for example, buttons are normally used, the activation of which by the user or driver activates a downstream electrical or electronic element.
  • the operating devices or elements can additionally be combined or provided with display elements in which suitable symbols refer to the corresponding functions.
  • the invention is based on the object of specifying a method for producing an operating device or element of the abovementioned type with which a control element which is particularly flexible in its shape and adaptable to a given interior design and which is comparatively durable and durable can be obtained in a comparatively simple and favorable manner ,
  • This object is achieved according to the invention by applying printing to a carrier film on the one hand and a piezoelectric layer on the other hand, and then subjecting the carrier film to 3D deformation.
  • the invention is based on the consideration that a particularly long life of the control element can be achieved by this is performed as a keyless control unit, in particular with recourse to piezoelectric sensors or sensors.
  • Such control units with piezo sensors come in a planar design, for example in the field of household electronics used.
  • a household appliance with such a control unit is for example from the DE 198 11 372 A1 known.
  • the piezoelectric layer may be applied in a manner suitable for handling the piezoelectric materials.
  • a piezoelectric pressure buildup is applied after the printing of the carrier film, wherein the 3D deformation of the film system is carried out after the piezoelectric polarization.
  • a piezoelectrically printed, polarized film is laminated after the printing of the carrier film.
  • the intended multi-layer structure is advantageously provided with suitable illumination means.
  • a light distribution element is expediently arranged between the printing and the piezoelectric layer.
  • a Lichtverteilfolie preferably with integrated Lichtleitkanälen, laminated between the decorative or carrier film and the piezo film or injection molded or glued a suitable plate for light distribution between the two films.
  • an electroluminescent structure of the carrier or decorative film is assigned to provide a suitable illumination system.
  • an electroluminescent structure is advantageously applied between the printing and the piezoelectric layer.
  • the 3D deformation of the carrier foil provided with the piezoelectric layer can be carried out by suitable methods, preferably by deep-drawing or high-pressure forming or also in an injection mold.
  • the printed carrier foil provided with the piezoelectric layer is injected behind after its 3D deformation, preferably with a suitably chosen plastic.
  • the back injection can take place in a joint step with the 3D deformation of the film system, if this is done in the injection mold.
  • the back-injection can be made using standard technologies, with 3D-molded back-injected films already being used as standard decoration in climate control equipment.
  • the advantages achieved by the invention are, in particular, that a substantially arbitrary surface contour for the operating element or device can be produced by the 3D deformation of the substrate provided with the piezoelectric layer, without affecting the functionalities of the touch sensors in the respective surface areas become.
  • This allows a largely free design and placement of individual controls or key functions on the molded part thus produced.
  • a comparatively free deformability also ensures a particularly long service life and service life of the operating element.
  • FIG. 1 schematically illustrated operating device 1 of a vehicle air conditioning according to has a number of executed in the embodiment as a turntable controls 2.
  • the operating device 1 is provided for installation in a vehicle cockpit, wherein the contouring of the surfaces is adapted to the desired interior design of the cockpit.
  • the controls 2 and optionally further, not shown controls or display elements are adapted in terms of their size, shape and contouring to the desired interior design.
  • a carrier film 4 which is provided with a piezoelectric layer 6.
  • a suitable printing is first applied to the carrier film 4, which is to ensure the optical design of the molded part according to the specifications of the interior design.
  • the piezoelectric layer is then suitably applied to the carrier film 4 printed in this way, wherein, for example, a piezoelectric pressure build-up with subsequent piezoelectric polarization or alternatively the lamination of a piezoelectrically printed, polarized film can be provided.
  • this composite system or the coated carrier film 4 this is subjected to a suitable three-dimensional deformation step ("3D deformation").
  • a suitable deep-drawing process or a high-pressure deformation can be provided.
  • the deformation may be provided in an injection mold.

Landscapes

  • Illuminated Signs And Luminous Advertising (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
EP20080106004 2007-12-20 2008-12-17 Procédé de fabrication d'un appareil de commande sans touches Withdrawn EP2073387A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007061533A DE102007061533A1 (de) 2007-12-20 2007-12-20 Verfahren zur Herstellung eines tastenlosen Bediengeräts

Publications (1)

Publication Number Publication Date
EP2073387A2 true EP2073387A2 (fr) 2009-06-24

Family

ID=40481962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080106004 Withdrawn EP2073387A2 (fr) 2007-12-20 2008-12-17 Procédé de fabrication d'un appareil de commande sans touches

Country Status (2)

Country Link
EP (1) EP2073387A2 (fr)
DE (1) DE102007061533A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011006402A1 (de) * 2011-03-30 2012-10-04 BSH Bosch und Siemens Hausgeräte GmbH Bedienblende eines Hausgerätes mit einem Berührelemente-Folienstreifen sowie Verfahren zur Herstellung dieser Bedienblende
DE102012022741A1 (de) 2012-11-21 2014-05-22 Audi Ag Betätigungsvorrichtung zum manuellen Einstellen einer Funktion eines Fahrzeugs und Verfahren zum Herstellen der Betätigungsvorrichtung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008056736A1 (de) * 2008-11-11 2010-05-12 Bayerische Motoren Werke Aktiengesellschaft Folientastatur und Verfahren zur Herstellung eines Bauteils mit integrierter Folientastatur
DE102011016429A1 (de) * 2011-04-08 2012-10-11 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Anzeigeschaltereinheit für ein Fahrzeug und Verfahren zur Herstellung der Anzeigeschaltereinheit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19811372A1 (de) 1998-03-16 1999-09-23 Bosch Siemens Hausgeraete Haushaltsgerät mit einer Bedieneinheit mit Piezosensor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19650468C1 (de) * 1996-12-05 1998-03-12 Kundisch Gmbh & Co Kg Verfahren zur Herstellung einer Folientastatur
US6897390B2 (en) * 2001-11-20 2005-05-24 Touchsensor Technologies, Llc Molded/integrated touch switch/control panel assembly and method for making same
DE10359297A1 (de) * 2003-12-17 2005-07-28 Lisa Dräxlmaier GmbH Piezoschalter
DE102005003548A1 (de) * 2004-02-02 2006-02-09 Volkswagen Ag Bedienelement für ein Kraftfahrzeug
DE102004023420A1 (de) * 2004-05-12 2005-12-08 Lisa Dräxlmaier GmbH Verfahren zum Herstellen einer kombinierten Piezo-/Leuchtfolie und Betätigungselement mit einer derartigen Piezo-/Leuchtfolie

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19811372A1 (de) 1998-03-16 1999-09-23 Bosch Siemens Hausgeraete Haushaltsgerät mit einer Bedieneinheit mit Piezosensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011006402A1 (de) * 2011-03-30 2012-10-04 BSH Bosch und Siemens Hausgeräte GmbH Bedienblende eines Hausgerätes mit einem Berührelemente-Folienstreifen sowie Verfahren zur Herstellung dieser Bedienblende
DE102012022741A1 (de) 2012-11-21 2014-05-22 Audi Ag Betätigungsvorrichtung zum manuellen Einstellen einer Funktion eines Fahrzeugs und Verfahren zum Herstellen der Betätigungsvorrichtung
DE102012022741B4 (de) 2012-11-21 2024-01-18 Audi Ag Betätigungsvorrichtung zum manuellen Einstellen einer Funktion eines Fahrzeugs und Verfahren zum Herstellen der Betätigungsvorrichtung

Also Published As

Publication number Publication date
DE102007061533A1 (de) 2009-06-25

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